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Collateral formation is one of the more beautiful feats of the human body: when an arterial occlusion grows chronically over time, the body responds by forming collaterals, allowing the end organ to remain perfused. 2/8 
This is the opposite of a blown levee or an overflowed dam, which are symptoms of insufficient preparation in the face of a massive onslaught of pressure.
#COVID19 is that pressure, and our health system can choose to build a dam or to build collaterals. 3/8
#COVID19 is that pressure, and our health system can choose to build a dam or to build collaterals. 3/8
